Infrared imaging of the crime scene: possibilities and pitfalls.

Autor: Edelman GJ; Department of Biomedical Engineering & Physics, Academic Medical Center, University of Amsterdam, P.O. Box 22700, 1100 DE, Amsterdam, the Netherlands., Hoveling RJM; Department of Biomedical Engineering & Physics, Academic Medical Center, University of Amsterdam, P.O. Box 22700, 1100 DE, Amsterdam, the Netherlands., Roos M; Mobile Forensic Team, Netherlands Forensic Institute, P.O. Box 24044, 2490 AA, The Hague, the Netherlands., van Leeuwen TG; Department of Biomedical Engineering & Physics, Academic Medical Center, University of Amsterdam, P.O. Box 22700, 1100 DE, Amsterdam, the Netherlands., Aalders MCG; Department of Biomedical Engineering & Physics, Academic Medical Center, University of Amsterdam, P.O. Box 22700, 1100 DE, Amsterdam, the Netherlands.
Jazyk: angličtina
Zdroj: Journal of forensic sciences [J Forensic Sci] 2013 Sep; Vol. 58 (5), pp. 1156-1162. Date of Electronic Publication: 2013 Aug 06.
DOI: 10.1111/1556-4029.12225
Abstrakt: All objects radiate infrared energy invisible to the human eye, which can be imaged by infrared cameras, visualizing differences in temperature and/or emissivity of objects. Infrared imaging is an emerging technique for forensic investigators. The rapid, nondestructive, and noncontact features of infrared imaging indicate its suitability for many forensic applications, ranging from the estimation of time of death to the detection of blood stains on dark backgrounds. This paper provides an overview of the principles and instrumentation involved in infrared imaging. Difficulties concerning the image interpretation due to different radiation sources and different emissivity values within a scene are addressed. Finally, reported forensic applications are reviewed and supported by practical illustrations. When introduced in forensic casework, infrared imaging can help investigators to detect, to visualize, and to identify useful evidence nondestructively.
(© 2013 American Academy of Forensic Sciences.)
Databáze: MEDLINE
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